Motorized pencil pointer



May 14, 1957 c. R. TAYLOR lMOTORIZED PENCIL POINTER 3 Sheets-Sheet lFiled July 19, 1955 INVENTORJ v, ATTORNEYS\\Nv\\\\\\\\\\\\\\\\\\v\\\\\\\\\\\ May 14, 1957 c. R. TAYLOR 2,791,986

MOTORIZED PENCIL POINTER Filed July 19, 1 956 5 Sheets-Shee:l 2

-INVENTOR @fa/mmv @L L5 f) 5 BY r@ ATTORNEYS May 14, 1957 C, R TAYLOR2,791,986

MOTORIZED PENCIL POINTER Filed July 19, 1956 3 Sheets-Sheet 5 :F1 S. El34 59 wm if. a "wa ATTORNEYS United States MOTORIZED PENCIL POINTERClarenceR. Taylor, Penfeld, N. Y.

Application July 19, 1956, Serial No. 598,815`

3 Claims. (Cl. 12094) pad provided for thatpurpose, doing all.ofthiswithonehand, and quickly return to his` work,stoppingtheoperation of Vthe device by merely closing the hinged.. coverwhich1 shuts o .the motor.

A further objectof the invention is to provi'dea novell device in whicha` moving or vibrating. sand-paperrj or' emery-paper pad or sheet iscontained in a styled housing. and operated by a standardVelectricalmotor.

A'. still further objectof the invention .is to. provide. a

device: with' a casingor housingwhich collects and retains:

pencil leadiilingsso' that theycannot escape onto worlc sheets.`

Another object-.of theinvention'is to provide. eflicient' means inamotorized pencilpointer device for retaining an oscillating-:pad'ofsandpaper, whereby, whenA the pad has become worn; a newpad can bequickly substituted.

Still anotherobject of thisinvention is to provideza lead filingcollector anda pencil wiping pad in amotorized' pencil pointer.

Wit-hthe foregoing andothenobjects in View, Vthis inven. tion comprises,certain novel constructions, combinations, and-arrangements.of'parts aswill-behereinafter fully described, illustrated' in ltheaccompanyingdrawings, and more particularly pointed outin the appendedclaims.

In -the t drawings:

Figure 1 is .a top plan View; taken substantially onliney 1 1', Figurey2,' and showingflhe housing'in horizontal' section.V

Figure'Z isa side View of the-device,- the housing-being shown insection.

Figure isla" transversetsectional ViewV takenon line 3--3, Fig. 2,and-lookingin the direction ofthe arorws.

Figure 4 is a transverse, vertical sectional viewtaken substantially online 4 4, Fig, 1, and looking in `the direc-- tion of the arrows.-

Figure r5 Visacentral, verticalsectional view taken on line 5-5, Fig. 1,and looking ink the direction of ythe arrows..

Figure 6 is` a fragmentary, sectionalV view showing .the

cover ofthe deviceinaraised position, anda pencil or the like as itappears wh'cn the' point is being operated upon.

Figure 7 is a fragmentary sectional vieu/"taken on line' 7 7, Fig. 6,andlookingin the direction of the arrows.

Figure 8l is-a perspectivewiew of the' retainingmeans for the steelpin.'-

Figure 9 is Ya transverse vertical sectional view taken onl line9-9",-Figure1, and vlookingin the'direction 'of the arrows.

Figure lO'isVv a similarviewto FigureV 9,1 except that the lid orcover-of1 the-deviceis-shown inY- a raised orfop'en position.

atent' O 27gi1 Patented May 14, 1957 ICC Figure: 111' isa perspective:view ofi the' upper facefof the*-l actu'atingiplate, while Figure112'lisa1bo'tt'om viewfofi this plate.

FigureA 13'- is arpierspec'tive viewof the-platevw'hich is actuated bylthe eccentric pinof the-motor shaf'tl.

Figuref1'4isan enlarged-perspective view tolillus-tr'ate' thepositioning:` of the eccentricpin onv the' rotor.

Figure 15S isa'r perspective viewofthe" plate or unithaving two:abrasive surfaces of'difierentqualities.

Referringtothe; drawings by numerals', 1designates`lth`e housing.' or.'casing which]` maybe-mad'e of any suitable* material.Mountedon-tliec'asingY 1' isy a' lid or cover 2i Thefc'asing rests-onza'projecting-'part 3, Fig. 5 oftheba'se 4-with; anupstandingfpartS ofthe-base4 projec'tihgia'l distance up into the casing'- 1- asrshown,which forinsanz admirable seal` for' preventing dust o'r foreignmateria-1vvresultingrfro'mlhe 'sharpening of-the' point from escapiiiglfrom the casing;

Supported uponithe b'ase 4 is a'- flat metallic plate-`1ike" frame'6?to'whichisassembledthe motor winding 7 L' The 'Y Casing 1 iS providedwith a notch, not shown, throughs.

whichpassesV the electric cord, Fig; l, this electriccordbeing'attache'dlby wire9-.to the motor and the'other wire;

ltlfofcord 8.1islattached'at:11-to the lowerblade 12'of the'switch'l13Wirea14-'is1attached to the upperblade' 157 f ofzthetswitchLlS: The twobladesV 1-2 and15 are provided witlLconta'ct lugsf1'6, wherebywhen theyare' in engage# ment t-hezcircuitlis closedy between thetwo blades 12and` 15.' 'lheclosing-,fof the circuit by? the blades' being. made' tocontact' will startzthe motor 7, which motor is ofja'n'y' standard type,andswiththe motor operating the motorY Ashaft"17fwill tbe'. rotated, onwhich shaft 17 is the eccentric' bracket structure 29 in which ismounteda portion ofliat' springjllr. The llatl spring30: isheldalso by a lug-31 (Fig. 5) extending through the spring from the casingl.' The Youterend-ef. spring 30 bears upwardly against the* squared portionv 26' ofthe cover 2, whereby when the cover is: raisedas'- shown in Figure 6,the cover will'be held in thisv openspositionby'the action of spring'30. When thef cover -ismoved' to. aticlosed'position, theatf spring 30will engage the'outer face of the enlarged portion: 26 tending toholdthe cover 2 in a closed positionv against i accidental opening.

On the upper switch blade-15' is an upstanding vlug 323'A which*` isadapted tosbe pressedagainst when the cover 2 israisedto the positionshownin Figure 10. Thus,-the' metalspring. 30'1Will press againstupstanding'lug 32"v causing the switchblades 12 and 15 to contactthrough i their" corresponding lugs 16, lwhich will automatically startthesmotor (common'structure not shown) which will rotatershaftV 17"resulting ineccentric pinIlS in 'ap'er-v ture 19 causing plate 2i) tobe reciprocated between the guidesZl.- Thenactuating plate 22T-ismountedon studs 33 rthat-are positioned in the apertures 23 of the plate22;- These studs 33 are fixedv to the'loscillating arms 34.1

The :two-oscillating 'arms 34 are lixedly secured to the?" reducedportion` 36, Fig. 3, the lowercndsof which rests-'-4 on theplate-likeframe, and onthetlower end ofthe'po'st- 35 :is: a. second reducedportion. 37 that extendsl Iinto the base; 38 there: arefR two@ bases'-uponlwhich.` the' rotatable' posts 35 are mounted as shown in Figure 3.Each post 35 is provided with a coil spring 39. The upper end of eachspring 39 is fastened-at 40 to the post, while the klower end fof thespring bears against a portion ofthe switch constituted by the blades 12and 15. The springs 39 exert `a -torsional strain upon the posts 3S.

The actuating plate 22 is placed upon the studs 33, Fig. 1, with thelower apron 25 extending outwardly as shown in Figure 6, whereby -anyfilings from the pencil point will fa'll clear of the interior of 'thecasing until the tilings reach the bottom thereof where they may becollected until the operator cleans the casing 1. The formation of thecasing lat 3 and 5, Fig. 5, produces an admirable seal whereby the lingsor loose substance cannot escape until the operator removes the same.

As hereinbefore indicated the device is placed on a desk or tableconvenient to the owner so that he can easily reach the cover 2, andupon raising the cover the closing of the circuit from the motor 7 willbe caused, causing movement of the motor shaft 17 which will actuate theplate 20, causing it to reciprocate to a degree between the guides 21resulting in the actuating plate moving in an oscillating manner for thepurpose hereinafter described.

A combination sheet of sandpaper 41, Fig. 15, is employed, having `atine surface 42 and a coarse surface 43, and is placed upon plate 22with studs 33 extending through the apertures 23a, holding thedetachable sheet 4 securely upon the actuating plate. When the operatorwishes to sharpen the point of the pencil or instrument he is using, thepencil point is placed rst against the coarse portion 43 of the sheet41, Fig. 6, and the point is sharpened by frictional contact, since thesheet is rapidly oscillating back land forth. Then when the operatorwishes to finish the operation he can move the point to the ne portion42 and secure the desired finished result. Then he can quickly lower thecover 2 which will cause the blades 12 `and 15 to separate, stopping themotol'.

The casing 1 is provided on each side with an open ended notch 44, Fig.3. When the cover 1 is on the base, screws 45 are in these notches 44,holding the cover 1 securely in position.

A bracket 46, Fig. 2, is employed, on which is mounted a sponge 47,which sponge will permit the operator of the device to clean the pointof the pencil or other instrument that has been sharpened.

It will be understood lthat pencil iilings vibrate off the sandpaperplate or sheet both front and at sides of said sheet; the plate 22 'hasthe apron 24 for preventing the filings falling over backward of theactuating plate, thereby preventing said filings from falling down intothe base of the device; this is an important point since it is desirableto prevent undue soilage of the work sheet.

It is understood that the sandpaper sheet is replaceable, by simplylifting the same off lthe pins or studs 33 and inserting a new one. Thiscan be done Without removing the cover of the unit.

ln Figures 6, 7 and 8 is shown the mounting and retaining means for lthepivotal pin 27. As shown particularly in Figure 7, the central recessfor the pin 27 is shown at S0. The inserts 51 are at the extreme outerends of the pin 27. There is provided a central retaining member 52. Itis to be understood that the inserts 51 are put in place and anchored tothe lid 2 by means of liquid plastic cement.

.The blades 12 and 15, Fig. 10, are mounted on spacers 13a and on screws13b; the said spacers and screws are actually insulators. The longscrews 13b serve the purpose of locking the motor stator 6 to the baseboss 38.

On the base of the device there is placed a rubber pad 54 to keep thedevice from moving about on the surface upon which it is resting whenthe motor is running.

The built-in cord pull, as shown in Fig. 1, is essential from anUnderwriters laboratory viewpoint to guard soldered jointsagainstaccidental strain. It is also to be noted lthat with the cover inplace, it will be impossible to reach the contact plate with thestandard Underwriter conical test probe.

It is to be understood that by using the springs 39 the dampening of themovement of arms 34 will prevent undue noise. Further, the springstructure shown in Figure 6 for the cover 2 will cause efficient springaction as the elements will move in a smooth manner for the bestpossible result. l

While I have described the preferred embodiment of the invention andillustrated the same in the accompanying drawings, certain minor changesor alterations may appear to one skilled in the art to which thisinvention re lates during the extensive manufacture of the same, and I,therefore, reserve the right to make such alterations or changes asshall fairly fall within the scope of the appended claims.

What I claim is:

l. In a device of the class described in combination, a casing, a motorin said casing, a drive shaft extending from said motor, an eccentric onthe end of said drive shaft, an actuating plate, parallel guides on thebottom of said actuating plate, a slidable plate mounted forreciprocaJton between said parallel guides, said sliding plate having anaperture therein, said eccentric engaging in said aperture, a pair ofpivotally mounted arms swingable in said casing, studs on the free endsof said arms connected to said actuating plate, and an abrasivesharpening sheet secured on the upper surface of said actuating plate.

2. In a device of the class described in combination, .a casing, a motorin said casing, a drive shaft extending from said motor, an eccentric onthe end of said driving shaft, an actuating plate, parallel guides onthe bottom of said actuating plates, a slidable plate mounted forreciprocation between said parallel guides, said sliding plate having anaperture therein, said eccentric engaging in said aperture, a pair ofpivotally mounted arms swingable in said casing, studs on the free endsof said arms connected to said actuating plate, an abrasive sharpeningsheet secured on the upper surface of said actuating plate, a hingedcover for said casing above said sharpening sheet, and switch meansoperable by opening said cover for energizing said motor to reciprocatesaid sheet.

3. In a device for the class described in combination, a casing, a motorin said casing, a drive shaft extending from said motor, an eccentric onthe end of said drive shaft, an actuating plate, parallel guides on thebottom of said actuating plate, a slidable plate mounted for re-`ciprocation between said parallel guides, said sliding plate having anaperture therein, said eccentric engaging in said aperture, a pair ofpivotally mounted arms swingable in said casing, studs on the free endsof said arms connected to said actuating plate, an abrasive sharpeningsheet secured on the upper Isurface of said actuating plate, a hingedcover on said casing, said cover provided on its inner end with anenlarged portion, a two-bladed switch in said casing under said cover,means operated upon by the enlarged portion of said cover for closingthe two-bladed switch only when said cover is in an open position, and'means in said casing :and connected to said motor shaft for electricallyoperating said shaft when said two-bladed switch is closed by theopening of said cover and said cover remaining in an open position.

References Cited in the le of this patent UNITED STATES PATENTS1,165,894 Negraval Dec. 28, 1915 2,230,936 Collins Feb. 4, 19412,618,240 Haase Nov. 18. 1952 2,715,804' Wickes Aug. 23, 1955 2,738,768Johnson Mar. 20. 1956

